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Merging bound states in the continuum by harnessing higher-order topological charges
- 发表刊物：Light: Science & Applications
- 摘要：Bound states in the continuum (BICs) can confine light with a theoretically infinite Q factor. However, in practical on-chip resonators, scattering loss caused by inevitable fabrication imperfection leads to finite Q factors due to the coupling of BICs with nearby radiative states. Merging multiple BICs can improve the robustness of BICs against fabrication imperfection by improving the Q factors of nearby states over a broad wavevector range. To date, the studies of merging BICs have been limited to fundamental BICs with topological charges ±1. Here we show the unique advantages of ...
- 论文类型：期刊论文
- 卷号：11
- 期号：228
- 是否译文：否
- 发表时间：2022-07-19
